Just before mixing up thinset, ensure you have all the best tiles in the ideal place. You can do this by dry-fitting tiles on the floor. You might also consider an ergonomic seat if you work on plenty of flooring for greater positioning and luxury when tiling. They are even so not completely flat, https://collinsbgil.elbloglibre.com/36372349/floor-tiling-no-further-a-mystery